[PATCH 08/10] arm64: dts: imx8mq: Add Root Port nodes and move PERST property to Root Port node
Sherry Sun
sherry.sun at nxp.com
Mon Jan 19 02:02:33 PST 2026
Since describing the PCIe PERST# property under Host Bridge node is now
deprecated, it is recommended to add it to the Root Port node, so
creating the Root Port nodes and move the reset-gpios property.
Signed-off-by: Sherry Sun <sherry.sun at nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 10 +++++++--
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++
2 files changed, 30 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index d48f901487d4..723b34100a61 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -369,7 +369,6 @@ mipi_dsi_out: endpoint {
&pcie0 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie0>;
- reset-gpio = <&gpio5 28 GPIO_ACTIVE_LOW>;
clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,
<&pcie0_refclk>,
<&clk IMX8MQ_CLK_PCIE1_PHY>,
@@ -389,10 +388,13 @@ &pcie0_ep {
status = "disabled";
};
+&pcie0_port0 {
+ reset-gpios = <&gpio5 28 GPIO_ACTIVE_LOW>;
+};
+
&pcie1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie1>;
- reset-gpio = <&gpio5 12 GPIO_ACTIVE_LOW>;
clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
<&pcie0_refclk>,
<&clk IMX8MQ_CLK_PCIE2_PHY>,
@@ -414,6 +416,10 @@ &pcie1_ep {
status = "disabled";
};
+&pcie1_port0 {
+ reset-gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
+};
+
&pgc_gpu {
power-supply = <&sw1a_reg>;
};
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 607962f807be..de2ba4ee9da6 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -1768,6 +1768,17 @@ pcie0: pcie at 33800000 {
assigned-clock-rates = <250000000>, <100000000>,
<10000000>;
status = "disabled";
+
+ pcie0_port0: pcie at 0 {
+ compatible = "pciclass,0604";
+ device_type = "pci";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pcie0_ep: pcie-ep at 33800000 {
@@ -1846,6 +1857,17 @@ pcie1: pcie at 33c00000 {
assigned-clock-rates = <250000000>, <100000000>,
<10000000>;
status = "disabled";
+
+ pcie1_port0: pcie at 0 {
+ compatible = "pciclass,0604";
+ device_type = "pci";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pcie1_ep: pcie-ep at 33c00000 {
--
2.37.1
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